期刊
JOURNAL OF PSYCHOSOMATIC RESEARCH
卷 64, 期 5, 页码 537-541出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpsychores.2007.11.007
关键词
placebo effect; placebo responders; pain; test-retest reliability
类别
Objective: The existence of reliable personality predictors of the placebo effect is controversial. For prediction to be possible, the response to placebo must be reliable. We tested the consistency of the placebo effect by assessing the response to four trials of placebo analgesic treatment. Methods: Two identical experimental pain stimuli were administered simultaneously to matching fingers on both hands. Pain sensation was compared between one finger, which was treated with a placebo cream and the other which was not treated. Two placebo creams were used, each with a different label. The procedure was repeated between 1 and 8 days later using the same creams and order of presentation. Two personality traits (acquiescence and absorption) and response expectancy were assessed as potential predictors of the placebo effect. Results: Placebo effects across trials were highly correlated (r=.60 and.77) when placebos bore the same name but were not significantly correlated when placebos had different names. Placebo effects were significantly associated with response expectancy but not with acquiescence or absorption. Conclusions: Context-specific predictions of placebo response (e.g., expectancy) are possible, but personality predictors will not be consistent across contexts. (c) 2008 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据